136133903 has 4 divisors (see below), whose sum is σ = 136489728. Its totient is φ = 135778080.

The previous prime is 136133897. The next prime is 136133929. The reversal of 136133903 is 309331631.

136133903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136133903 - 2⁴ = 136133887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136133983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177338 + ... + 178103.

It is an arithmetic number, because the mean of its divisors is an integer number (34122432).

Almost surely, 2^136133903 is an apocalyptic number.

136133903 is a deficient number, since it is larger than the sum of its proper divisors (355825).

136133903 is an equidigital number, since it uses as much as digits as its factorization.

136133903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355824.

The product of its (nonzero) digits is 4374, while the sum is 29.

The square root of 136133903 is about 11667.6434210169. The cubic root of 136133903 is about 514.4250384173.

The spelling of 136133903 in words is "one hundred thirty-six million, one hundred thirty-three thousand, nine hundred three".